Chris Brown’s girlfriend Karrueche Tran has ditched him on Twitter, after he reportedly had sex with his former girlfriend Rihanna at a trendy New York nightclub’s toilet.

Brown and Rihanna were seen canoodling at New York hotspot Griffin before bolting themselves inside the washroom for
30 minutes. “Life is too short to be anything but happy,” the Daily Mail quoted Tran, as tweeting. “There’s a difference between a man and a boy. I prefer men (sic),” she wrote.

When a friend told Tran to “Let it go for your own good,” she replied, “oh baby I am,” then as fans speculated whether she had dumped Brown, she posted, “Remember I said I prefer men.” “They hooked up. I wasn’t in the bathroom with them but I know they f***ed around,” the New York Post quoted Rihanna’s friend as telling Hollywood Life.

Tran has now jetted out of New York, simply tweeting on Wednesday: “take off.” The recent showdown has taken place after pictures of Rihanna and Brown partying together at celebrity hotspot Griffin in New York''s Meatpacking district, emerged.

In one grainy snap, Brown is standing close behind the 24-year-old singer as they mingle with other guests in a VIP area. Brown, who is wearing a white T-shirt in the image, can be seen standing on what appears to be a booth, while Rihanna is standing just below him.

In a much clearer snap, the Umbrella hitmaker is seen looking up at Brown, who reciprocates in an attentive manner.